[Throwaway0812]

Don't forget Highcharts...

http://www.highcharts.com

[cglee]

Just from a cursory glance, it appears that Chartjs is entirely free and you can do what you want with it, while Highcharts is not.

[hayksaakian]

It would be nice if this distinction was stated unambiguously on the front page

here's the license if you were looking for it like I was

https://github.com/nnnick/Chart.js/blob/master/LICENSE.md

[eterm]

Took me ages to find the license, I ended up clicking documentation and still having to search for the word license to find it. I wish it was more prominent on the landing page.

[skeletonjelly]

Highcharts is free for non commercial

[paul_f]

Big fan of Highcharts. Like that you can export charts to a png. Big deal for me, don't think chart.js offers anything like that?

[lalwanivikas]

FusionCharts can export charts to PNG, JPG, PDF and SVG. I've been trying both FusionCharts and HighCharts for past few weeks and I can say that I am a bit inclined towards FusionCharts. Had this discussion the other day as well when Epoch[1] was released.

[1] https://news.ycombinator.com/item?id=7948560

[nnnnnick]

Yep, you can call .toBase64Image() on your chart instance to return a png image encoded as a base 64 data url.

[scrollaway]

I really like the feel of HighCharts. I've been using HighStock (their financial charts) for traffic analytics graphs and it works really well.